Automatic pinion-cutting machine.



A. H. NBUREUTHER. AUTOMATIC PINION CUTTING MACHINE.

APPLIOATION FILED OCT. 8. 1908.

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Md Emit/u A. H. NEUREUTHER. AUTOMATIC PINION CUTTING MACHINE.

APPLICATION FILED OCT. 8, 1908.

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IVENTOR WITNESSES:

A. H. NEUREUTHER. AUTOMATIC PINION CUTTING MACHINE.

APPLICATION FILED OCT. 8, 1908.

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\VITNFLSSES:

ANDREW I-I. NEUREUTHER, OE PERU, ILLINOIS, ASSIGNOR TO THE WESTERN CLOCK MANUFACTURING COMPANY, OF LA SALLE, ILLINOIS. A CORPORATION OF ILLINOIS.

AUTOMATIC PINION-CUTTING MACHINE.

scarce.

Specification of Letters Patent.

Patented Apr. 5., 121th.

Divided and this application filed October 8,

T 0 all whom it may concern:

Be it known that I, ANDREW H. NEU- REUTHER, a citizen of the United States, residing at Peru, in the county of Lasalle and State of lllinois, have invented a new and useful Automatic Pinion-Cutting Machine, of which the following is a specification.

lhis application is a division of application No. 374,934, filed May 21st, 1907.

drawings, in which Figure 1 is a vertical cross-sectional view through the feeding device. Fig. 2 is a right-hand side view. Fig. 3 is an enlarged cross-sectional view of the spring loaded age for lining the blank with the arbor.

ig. a is a front end view of my machine.

In the drawing, 1 represents the frame oi my machine, 2, 3 and are bearings in the frame 1 which journal the shaft 5 by means of which the entire driving mechanism of the machine is driven by means ct pulley 8 and belt 9. Rigidly fastened to shait 5 is a worm 7, which engages a worm wheel 10 which is rigidly fastened to a shaft 11, which is journaled in the front end at the frame 1 and in bracket bearings 13 and 1? fastened to the frame oi the machine. Shaft 11 terminates with a bevel gear 1% which engages with a bevel gear 15 which is rigidly mounted on a shaft 16 which is journaled in the frame of the machine as shown. Shaft 10 carries cams 110 and 1&8, both rigidly fastened to it by means or the pins shown. Cam 110 has a groove which carries roli 109 which is journaled on a pin 10% which is rigidly fastened to a lever 10?, which is journaled on a pin 105 mounted in the frame of the machine. The upper end of lever 10? terminates in a projection 10 5, which has an aperture through which passes a pin 102. ()n this pin 102 are journaled two links 101 whose other ends have apertures which are journaled on pins projecting from the collar 99, also journaled on the progecting part of arbor 92. Nuts 100 retain said collar 09 in its propel position as shown. From this it is seen that cam 110 controls the longitudinal motion and position of arbor 92, causing it to remain stationary or to reciprocate, depending on the form of the groove in cam 110.

On shaft 16 is rigidly mounted a cam 1 18 which actuates a lever 19 journaled on a pin 20 fastened to the frame of the machine. .lhe other end of lever 20 is pivotally connected to a link 21 whose upper end is journaled on a pin fastened in the lower end of sliding member 22. Sliding member 22 is reciprocated vertically by means of cam 148. any number of times per revolution, depending on the form of the said cam 1 18. Said member as above mentioned slides in the standard 27, which supports a hopper 23 on its upper extremity. The upper end of member 22 is cut oil on an angle with the vertical, and has a slot through the entire top surface. The shape of this slot dcpends on the shape of the pinion or gear blank which it is desired to feed. The hopper 23 is generally filled with the blanks and the sliding member 22 works downward beneath the bottom of the hopper and comes up through the blanks; those which are erected or righted in the slot remain so untii when the sliding member 22 is at its upper limit of travel, the slot in member 22 is brought in line with a runway whose lower verticai part terminates in a horizont 1 runway. which. at once forms place the stack of blanks in the vertical runv to rest upon and a guidevay for bringin the hole in the blank in line with the arbor end 95 it is forced on to. Horizontal gui way 32 terminates in the curt. runway tube a2, which conducts the finished pinion or gear wheei away from the machine. Guideway has a notch 1 13 cut out of its upper edge so that the rotating cutter 134 can cut the blank 96 and has openings on each side which permit the small staking end or staking arbor 9%, which is tastened to above mentioned reciprocating arbor 92, to

pass through said guide or. runway and said ice pinion into the bearing or standard 98, w iich is rigidly fastened to the frame. The upper part of tube 42 contains a combined blank gaging and releasing mechanism which is composed of a piece 138 shaped as shown. (see 3) journaled to the tube at 139 and held in its normal position by spring 1&0 as shown in the ab ve mentioned Fig. 8.

28 is a plunger which reciprocates in the horizontal part of runway 32 and is shown in Fig. 1 in the act of taking a blank from the stack of blanks, while in Fig. 3 plunger 28 is shown placing the blank against the gage 188 after having pushed the blank 14% through the gage as indicated. Plunger 28 has a stem 26 which is journaled in frame 27, and has the end threaded for a nut 145 which serves to adjust the distance plunger 28 is thrown, so as lobring the blank up to the gage 138 and the center hole of the blank in line with staking arbor 95. l lunger 28 is actuated by means of a lever which is pivotally connected to it by pin 8d and pivotally connected by means of pin l0 to the standard 38, which is fastened to the frame of the machine. Said lever 30 is further pivotally connected to a rod 87, which is also journaled in standard 33 and in a bushing which is threaded to the frame of the machine at 86. Immediately after the rod 37 passes through the standard 83 it is formed into a slot which carries a roll 39, which is journaled on a pin 41 fastened in the said rod 37. On the other end of rod 37 is a spiral spring shown, which keeps the roll 89 against the cam 18 which is rigidly fastened to the shaft 11 above mentioned. From the shape of cam shown, it is evident that lever 30, and hence plunger 28, has an intermittent reciprocating motion, and pushes out or releases a blank and puts another from the stack of blanks in its place. The threaded bushing at 36 serves to screw up the tension of the spring on rod 87. It may be noted here'that when the runway is full of blanks as shown in Fig. 1, the blanks simply ride up and down on the sliding member 22 until there is room for one or more blanks in the stationary runway.

25 is the guide plate on standard 27 to retain the sliding member 22 in its position.

The arbor 92 as above mentioned has an intermittent reciprocating motion, moving forward when forcing on a blank against the standar 98, in which the end 95 of arbor 92 is journaled, and backward into the standard 98 in which itis also journaled, thereby releasing the blank from the arbor end 95 and leaving it free to be forced through the gage 138 by plunger 28.

In operation, my machine works as follows:-Pinion blanks are put. into hopper 28, the reciprocating sliding member 22 erects or rights them by means of its slot and they run into runway by their own weight and are stacked in the vertical part of 82, when plunger 28 in horizontal part of runway 32 comes in, removes one blank from the bottom of the vertical stack in and forces the blank along until it comes.

against the spring loaded gage 138 and is held in position by the plunger 28 and said 138 until cam 110 forces. by means of the intervening linkages, the small end 95 of arbor 92 through the aperture of the blank 96. is soon as the blank is staked, and the desired operations are performed on the blank, the cam 110, through the lever and linkages shown, pulls the arbor 92 back again, sliding the blank 96 against the standard and withdrawing the small arbor end 95 from the blank 96, leaving it free against the gage, when plunger 28 immediately brings in another blank from the stack of blanks in runway 82, which blank forces the cut blank through the spring loaded gage 188 and into the delivery tube 42, where it falls into a receptacle or box for catching the finished work. The new blank brought in by plunger 28 is now held against the gage 188 and then staked on the arbor 95, when the process above described is repeated, making the machine entirely automatic in all its parts.

ltwill be understood, of course, that the various portions of my machine could be used with the others or in connection with features greatly modified. It will also be understood that cams and arrangements of levers and other such operating parts could be greatly modified without departing from the spirit pf my invention. In short, I do not wish to be understood as limiting myself to one particular form, arrangement and grouping of these several features, elements or parts; but I have presented here that form of machine which I am now using, with the intention of having it taken in a sense diagrammatic or descriptive of that class of machines which could be produced and any one of which would contain the substance of all or most of my invention.

1 claim:

1. In, an automatic pinion cutting machine, .a runway, apertures through said runway, a notch in said runway, a lever pivotally eonnected on said runway, a projection on said lever, which projection enters the runway adjacent to said notch and a spring on said lever to maintain its projection in said runway.

2. in an automatic pinion cutting machine, a runway, a notch in said runway, apertures through said runway, means for alining the aperture of a gear blank with said apertures, said means comprising a plunger in said runway, a lever pivotally connected to the runway, a pro ection on said lever which enters the runway through said notch and a spring for resilientiy hold ing said projection in the runway, substantiaily as shown and described.

3. an automatic pinion cutting machine, a runway, a notch the upper part of said runway, apertures in each side of said runway, means for alining the aperture of a gear blank with said apertures, said means comprising a plunger said runway, a lever pivotally mounted o runway, a projection on said lever which enters the runway through said notch and a spring on saiu lever resiliently forcing the projection into the runway, substantially as shown and described.

t. in an automatic pinion cutting machine, a runway, a notch in the upper part of said runway, apertures in each side of said runway, means for bringing a gear blank into axial alinement with said apertures, said means comprising a plunger in said runway, a lever pivotally mounted on said runway adjacent to said notch',a projection on said lever which enters'the runway through said notch and resilient means for retaining said projection in said runway, substantially as shown and described.

5. in an automatic pinion cutting machine, a closed runway, two opposite staking abutments forming a part of the sides thereof, apertures in said abutinents, an open' ing in the upper part of said runway adjacent to said apertures, means for bringing the aperture of a gear blank into axial alinement with said apertures, said means comprising a plunger in said runway, a lever pivoted on said runway, a, projection on said ieyer which paswis into said runway throu ii said opening and resilient means for retaining said lever against the upper portion of said runway, substantially as shown and described,

5., an automatic pinion cutting machine, runway situated between two staking abutments, apertures in said abutnients, apertures in said runway in line with the apertures in said abntinents, a notch in said runway, means in said runway for bringing aperture of a gear blank in line with the above mentioned apertures, said means comprising a plunger in said runway, a lever pivoted to said runway, a projection on said lever which enters the notch in said runway, and resilient means tor-retaining said projection in said runway, substantially as shown and described.

7. in an automatic pinion cutting machine, a runway situated between two staking abutments, apertures through said runway through which passes a staking arbor, a notch in said runway, means in said runway for bringing the apertures of a blank in line with saidarbor, and against a stop comprising a lever, one end of which is pivoted on the-runway and the other end of which has a projection entering said runway, and a spring retaining said lever in said notch, substantially as described and for the purpose set forth.

ANDREW H. NEUREUTHER.

Witnesses:

@soAn W. DAUBER, WILLIAM A. RADTKE. 

